Playback Error - Client isn't compatible

[Okami]

@TheDreadPirate, thank you for your help. After swapping out Jellyfin Mobile (iOS) for Swiftfin, my videos play. They're also playing normally on the Swiftfin app for tvOS. However, I cannot get them to play within my PC's web browser (both Firefox and Chrome).

Attached is the codec as shown by VLC and the FFmpeg Transcode log. Any idea why videos aren't working on web browser?

Thank you.